The clarinet is a cylindrical woodwind whose sound comes down to one piece of physics: it is a closed pipe, and a closed pipe cancels its even harmonics, leaving only odd ones. This page's clarinet is built exactly that way — a square wave (which contains only odd harmonics) plus its third harmonic, softened by a 2600 Hz low-pass filter, giving that warm, slightly nasal woody tone. This is the instrument Mozart adored: his Clarinet Concerto K.622 is the crown jewel of the repertoire and the theme of the film Out of Africa, and Benny Goodman turned the clarinet into the king of swing. Here you change fingering with seven holes and hold the mouthpiece to sound it. It covers just eight notes — C4 to C5, the C major scale — but that is enough for your first melody in seconds. No download: everything is synthesized in your browser, and nothing leaves your device.
Click the holes or use your keyboard to change fingering, and hold the mouthpiece to play. All holes closed is C4; all open is C5 — that is the instrument's one octave. As on a real clarinet, pitch is set by the finger combination, not breath strength. The Record button exports your phrase as a WAV file. Start by opening the holes one by one from the top: you will hear do-re-mi-fa-sol-la-si-do immediately. This tone shines on slow legato lines rather than fast runs — let it sing.
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No — the sound is synthesized with a square wave and its third harmonic through a low-pass filter. No download, no instrument needed.
One octave, C4 to C5 — eight notes of the C major scale, laid out like do-re-mi-fa-sol-la-si-do.
It models closed-pipe physics: a square wave contains only odd harmonics, and a 2600 Hz low-pass filter adds warmth.
Yes — press Record, play, and download the result as a WAV file.
Yes, completely free, no registration and no limits.
A clarinet is a closed pipe, and closed pipes physically cancel even harmonics. The odd harmonics that remain are the signature of the real clarinet — and a square wave is exactly a signal made of odd harmonics only.
Yes — tap the holes to change fingering and hold the mouthpiece to play.
The basic octave follows the same idea as a real clarinet: more closed holes means a lower note, opening them raises the pitch.
A warm, slightly nasal woody sound — the core of the orchestral woodwind section, from Mozart's concerto to Benny Goodman's swing.
A clarinet sounds as long as air flows, so holding the mouthpiece = blowing. Release it and the note stops.
Yes — keyboard keys change the fingering. Combine them with clicking/holding the mouthpiece to produce sound.
Yes — pitch transitions use setTargetAtTime for a legato-style glide between notes.
The WAV file drops into any music or video software.
Start on C4 with all holes closed, then open them one by one up to C5 — the scale in under a minute.
A real clarinet's register key jumps a twelfth, but this version focuses on the fundamental octave (the chalumeau register).